Siemens sinamics dcp - Page 295

Operation
7.8 Communication via EtherNet/IP (EIP)
SINAMICS DCP
Operating Instructions, 09/2019, A5E34382853K
293
The data length for the assemblies of the receive and send data correspond to the total
number of PZD for all drive objects:
● Example 1:
Drive object (DO)
Number of PZD in the send
direction
Number of PZD in the receive
direction
DCP_CTRL
10
10
CU
2
2
Total data length
12 words = 24 bytes
12 words = 24 bytes
● Example 2:
Drive object (DO)
Number of PZD in the send
direction
Number of PZD in the receive
direction
DCP_CTRL
10
5
CU
0
0
TM31
1
1
Total data length
11 words = 22 bytes
6 words = 12 bytes
The highest PZD of a drive object, whose data is sent or received in an assembly, must be
connected with the data source or data sink via BiCO technology.
In example 1, PZD 10 of drive object DCP_CTRL and PZD 2 of the drive object CU_DCP
must have an active BiCO interconnection in the receive and send directions.
The highest interconnected PZD is displayed separately in r2067 (IF1) or r8867 (IF2) of a
drive object for the receive direction (index 0) and send direction (index 1).
In example 1, the total length of the send data can be calculated based on this parameter:
● DO DCP_CTRL: r2067[1] = 10
● DO CU_DCP: r2067[1] = 2
In total, 12 PZD or 24 bytes are obtained in the send direction.
The sequence in which the drive object data are arranged, depends on the communication
settings of the SINAMICS DCP. The position of the data in the assembly can be set in the
STARTER window "Telegram configuration":